JP5196100B2 - Projector, program, information storage medium, and projection method - Google Patents

Description

The present invention, projector, a program, a information storage medium and a projection method.

  Conventionally, projectors are often used alone, and the contents of abnormalities that occur are relatively simple, so only the number of abnormalities that occur for each type of abnormality has been counted.

For example, in Japanese Patent Laid-Open No. 9-61777, the warning content is displayed on the on-screen display when a specific key button is pressed in the warning mode, and the cause of the forced shutdown is displayed on the on-screen display at the restart after the forced shutdown. It is described to display.
JP-A-9-61777

  However, in recent years, projectors have become highly functional and various abnormalities have occurred, so that conventional functions alone have become impractical. For example, with the method of counting the number of abnormalities that occurred for each type of abnormality, it is difficult to identify the cause of abnormalities when multiple abnormalities occur simultaneously or when an internal abnormality occurs after a lamp abnormality occurs. Met.

  In addition, for example, there are many storage capacities such as PC (Personal Computer), etc., and some high-function devices have a function to store various abnormalities in detail, but there is also a small storage capacity like a projector, In a low-function device, mounting a function similar to that of a PC or the like complicates the configuration and increases the cost.

An object of the present invention is to provide store more reliably the abnormality of the contents related to the temperature at less storage capacity, a projector capable presenting the program, the information storage medium and a projection method.

In order to solve the above problems, a projector according to the present invention provides:
At least one temperature sensor for measuring the temperature of the object to be measured;
A temperature passage detection unit for detecting that the temperature has passed a numerical value serving as at least one checkpoint;
When the temperature passing detection unit detects that the temperature has passed the numerical value serving as the check point, the data relating to the passing numerical value and the data relating to the passing point are associated and stored in the storage unit as temperature log data. A temperature monitoring unit;
It is characterized by including.

The program according to the present invention is
A computer having a projector having at least one temperature sensor for measuring the temperature of a measurement object and a storage unit;
A temperature passage detection unit for detecting that the temperature has passed a numerical value serving as at least one checkpoint;
When the temperature passage detection unit detects that the temperature has passed the numerical value serving as the check point, the data relating to the passed numerical value and the data relating to the passage time point are associated and stored in the storage unit as temperature log data. It functions as a temperature monitoring unit.

The information storage medium according to the present invention is
An information storage medium storing a program readable by a computer of a projector having at least one temperature sensor for measuring a temperature to be measured and a storage unit,
The program is stored.

  According to the present invention, when the temperature of the measurement target passes a numerical value that serves as a check point, the projector or the like stores a change in temperature by associating and storing the data related to the numerical value and the data related to the passing time point. In addition, by storing only when the checkpoint is passed, it is possible to reliably store with less storage capacity than when storing temperature log data at regular intervals. Thereby, the projector or the like can store and present the contents of the abnormality more reliably with a small storage capacity. In addition, the temperature passage detection unit detects only when the numerical value serving as the check point passes due to the temperature rising, or only when the numerical value serving as the check point passes due to the temperature falling. Or the case where the numerical value serving as the check point is passed by the temperature rising and the case where the numerical value serving as the check point is passed due to the temperature falling may be detected.

  In addition, the projector may include a presentation unit that presents temperature log information related to the temperature to the user using at least one of an image and sound based on the temperature log data.

  According to this, the projector or the like can present temperature log information to the user.

In addition, the presenting unit
An image generator for generating an image related to the temperature log information;
A projection unit for projecting the image;
Including
The image generation unit generates a detailed log image based on the temperature log data,
The projection unit may project the detailed log image.

  According to this, the projector or the like can show the temperature log information to the user as an image.

  In addition, the projector may include an abnormality monitoring unit that associates data relating to the type of abnormality and data relating to the time of occurrence of abnormality and stores them in the storage unit as abnormality log data when the abnormality occurs.

  According to this, the projector or the like can manage the abnormality history by storing the abnormality log data when the abnormality occurs.

  The image generation unit may generate, as the detailed log image, an image indicating the type of abnormality and the abnormality occurrence time point in time series based on the abnormality log data.

  According to this, the projector or the like shows the type of abnormality and the time point of occurrence of the abnormality in time series, so that the contractor or the like can easily identify the cause of the abnormality.

  The image generation unit may generate an image showing only data corresponding to the specified type as the detailed log image based on operation information specifying the type of abnormality of the user.

  According to this, the trader or the like can narrow down and check the type of abnormality, and can easily confirm the content of the target abnormality even when the display area is small.

In addition, the projector includes a plurality of the temperature sensors that measure temperatures of different measurement targets,
The temperature monitoring unit, when the temperature of at least one of the temperature sensors has passed a numerical value that is the check point, data relating to the numerical value passed, data relating to the passing time point, data relating to the temperature of each temperature sensor, May be stored in the storage unit as the temperature log data.

  According to this, when the temperature of one temperature sensor passes the check point, the projector etc. also memorizes the temperature of the other temperature sensor, so that the contractor etc. identifies the cause when the temperature is abnormal. It's easy to do.

Further, the projector includes a plurality of fans that cool the measurement target,
The temperature monitoring unit, when the temperature of at least one of the temperature sensors has passed a numerical value that is the check point, data relating to the numerical value passed, data relating to the passing time point, data relating to the temperature of each temperature sensor, The data relating to driving of each fan may be associated with each other and stored in the storage unit as the temperature log data.

  According to this, the projector or the like also stores the driving information of the fan when the temperature of one temperature sensor passes the check point, so that the contractor or the like can easily identify the cause when the temperature is abnormal. .

  In addition, the projector may include an output unit that outputs the temperature log data to an external device having a display function or a portable information storage medium.

  According to this, even if the projector or the like cannot project an image due to an abnormality, the image can be displayed by the external device.

  Hereinafter, an example in which the present invention is applied to a projector will be described with reference to the drawings. In addition, the Example shown below does not limit the content of the invention described in the claim at all. In addition, all of the configurations shown in the following embodiments are not necessarily essential as means for solving the problems described in the claims.

(Description of the entire system)
When a projector supplier performs an abnormality confirmation operation, a log image (detailed log image) indicating an abnormal state or the like is projected.

  FIG. 1 is a diagram illustrating an example of a conventional log image 300.

  In the conventional log image 300, as “Fatal Error”, the number of occurrences of “T” indicating temperature abnormality, the number of occurrences of “L” indicating lamp abnormality, and the number of occurrences of “I” indicating other internal abnormality are displayed. It was.

  However, it is difficult for a trader to specify the cause of the abnormality that occurred immediately before in the conventional log image 300.

  In this embodiment, instead of displaying “Fatal Error”, a log image indicating the type and history of the abnormality that has occurred is displayed.

  FIG. 2 is a diagram illustrating an example of the log image 302 in the present embodiment.

  In the log image 302, the type of abnormality that has occurred (CD), the total operating time of the projector (TOT: hours, minutes, seconds), and the total operating time converted into the operating time when the projection lamp is in a low-brightness state. (LOT: hour, minute, second), elapsed time from power ON (power on) (POT: hour, minute, second), projector status (ST) at the time of abnormality, etc. Are displayed in chronological order.

  The types of abnormality include, for example, TH indicating internal high temperature abnormality, FN indicating fan abnormality, SE indicating temperature sensor abnormality, LE indicating lamp outage abnormality, lamp LF indicating failure in lighting failure, RA indicating data error when accessing RAM, RO indicating data error when accessing ROM, communication error inside projector II, an ID indicating that an abnormality has occurred in another CPU, an LC indicating an abnormal opening of the lamp lid, an EC indicating an abnormal connection of the capacitor, a CF indicating an abnormality in the color adjustment filter, a projection light AI indicating an abnormality in the aperture adjustment portion, RS indicating an abnormality in the ROM of the subsystem, RP indicating an abnormality during communication with the subsystem, and the like.

  Further, as the state of the projector, for example, “00” indicating that the lamp is extinguished and the minimum necessary part is operating, “01” indicating the normal state, and the lamp are turned on. “02” indicating the warm-up state, “03” indicating the cool-down state in which the lamp is turned off, “04” indicating that the part related to the network is operating in the standby state, abnormal “05” or the like indicating the standby state after the occurrence is applicable.

  In the log image 302, the number of occurrences for each type of abnormality is displayed as “Error Count”. Further, in the log image 302, the latest temperature log is also displayed as “Control”.

  Further, the projector according to the present embodiment has a function of storing the temperature log data only when the temperature level is changed so that the temperature log data can be stored with a small storage capacity. Further, the projector according to the present embodiment does not have a real time clock (hereinafter referred to as “RTC”), but has a function of calculating and determining the total operation time and the like.

  Next, functional blocks of the projector having such a function will be described.

  FIG. 3 is a functional block diagram of the projector 100 in this embodiment.

  The projector 100 includes a presentation unit 110 that displays a log image 302, an operation unit 120 that inputs user operation information, a control unit 130 that performs various controls, a storage unit 140 that stores various data, and the like. It includes a time calculation unit 150 that calculates total operating time, a counter 152, a temperature monitoring unit 160, a temperature passage detection unit 162, a temperature sensor 170, an abnormality monitoring unit 180, a power supply 190, and a fan 192. It consists of

  In addition, the presentation unit 110 generates an audio processing unit 111 that generates audio information based on the input audio information, an audio output unit 112 that outputs audio based on the audio information, and generates image information based on the input image information. The image processing unit 113 includes a projection unit 114 that projects an image based on the image information.

  Further, the storage unit 140 stores temperature log data 142 updated by the temperature monitoring unit 160, abnormality log data 144 updated by the abnormality monitoring unit 180, time data 146 updated by the time calculation unit 150, and the like. .

  Actually, a plurality of fans 192 and temperature sensors 170 are provided for each measurement target (for example, a lamp, a liquid crystal panel, etc.).

  The functions of these units can be mounted on the projector 100 using, for example, the following hardware.

  For example, the sound processing unit 111 is a sound processing circuit, the sound output unit 112 is a speaker, the image processing unit 113 is an image processing circuit, the projection unit 114 is a lamp, a liquid crystal panel, a projection lens, or the like. As an operation button, a light receiving unit that receives infrared light from a remote controller, etc., a control unit 130, a time calculation unit 150, a temperature monitoring unit 160, a temperature passage detection unit 162, an abnormality monitoring unit 180 as a CPU, a storage unit, etc. As 140, RAM, ROM or the like may be used.

  Further, the projector 100 may implement functions such as the image processing unit 113 using a program. For example, the projector 100 may read the program for causing the computer of the projector 100 to function as the image processing unit 113 or the like from the information storage medium 200 and implement the function of the image processing unit 113 or the like.

  As such an information storage medium 200, for example, a CD-ROM, DVD-ROM, ROM, RAM, HDD or the like can be applied, and the program reading method may be a contact method or a non-contact method. Good.

(Explanation of log processing flow)
Next, the flow of processing relating to logs in the projector 100 will be described.

  FIG. 4 is a flowchart showing the flow of processing relating to logs in the present embodiment.

  The projector 100 executes a temperature monitoring process at regular time intervals (step S1).

  FIG. 5 is a flowchart showing the flow of temperature monitoring processing in the present embodiment.

  More specifically, the control unit 130 refers to the count value of the counter 152 and causes the temperature sensor 170 to measure the temperature of the measurement target at regular time intervals (for example, 10 seconds, 30 seconds, 1 minute, etc.) (Step S130). S11).

  The temperature passage detection unit 162 determines whether or not the temperature level has changed based on the measurement value of the temperature sensor 170 (step S12).

  More specifically, the temperature passage detection unit 162 detects that the temperature has passed through at least one numerical value (for example, 40 degrees, 50 degrees, 60 degrees, 70 degrees, etc.) serving as a checkpoint and has risen or lowered. To do. For example, if the check point is 40 degrees and the measured value of the temperature sensor 170 changes from 37 degrees to 42 degrees, or the measured value changes from 46 degrees to 39 degrees, the temperature level has changed. become.

  When the temperature passage detection unit 162 detects that the temperature level has changed, the temperature monitoring unit 160 has data relating to the numerical values passed, data relating to the temperature of the temperature sensor 170, and data relating to driving of the fan 192. And the data related to the passage time are stored in the storage unit 140 as temperature log data 142 (step S13).

  For example, when there are six measurement objects, the temperature monitoring unit 160 determines the level (for example, 03, 04, 05, 06, etc.) corresponding to the numerical value of the passed temperature, and the measured value (T1 to T6) of each temperature sensor 170. ), The drive voltage values (F1 to F6) of the fans 192, and the elapsed time since the power source 190 is turned on are stored in the storage unit 140 as the temperature log data 142.

  The temperature monitoring unit 160 can grasp the driving voltage value of each fan 192 based on information from the control unit 130 and can grasp the elapsed time since the power source 190 is turned on based on the time data 146. it can. A method for grasping the elapsed time will be described later.

  The projector 100 can store the temperature log data 142 by the above procedure.

  Also, the abnormality monitoring unit 180 determines whether an abnormality has occurred at regular intervals (step S2). Specifically, the abnormality monitoring unit 180 monitors the temperature monitoring unit 160, the fan 192, the power source 190, the storage unit 140, and the like, thereby grasping what abnormality has occurred.

  If no abnormality has occurred, projector 100 repeatedly executes temperature monitoring processing (step S1) and abnormality occurrence determination processing (step S2) at regular intervals.

  On the other hand, when an abnormality occurs, the abnormality monitoring unit 180 stores an abnormality log (step S3).

  FIG. 6 is a flowchart showing the flow of the abnormality log storage process in the present embodiment.

  First, the abnormality monitoring unit 180 stores the type of abnormality as abnormality log data 144 in the storage unit 140 (step S21).

  Based on the time data 146, the abnormality monitoring unit 180 updates the total operating time, the low luminance conversion time, and the elapsed time from the power ON of the record in the abnormality log data 144, respectively (Steps S22, S23, and S24).

  The time calculation unit 150 updates the time data 146 at regular time intervals. Specifically, for example, when detecting that the power supply 190 is turned on, the control unit 130 activates the counter 152 and starts counting up. Based on the count value of the counter 152, the time calculation unit 150 updates the data indicating the total operation time, the low luminance conversion time, and the elapsed time from the power ON included in the time data 146. A more detailed description regarding the total operating time will be described later.

  Also, the abnormality monitoring unit 180 updates the number of occurrences for each type of abnormality in the abnormality log data 144 (for example, a value corresponding to “Error Count” in the log image 302) when an abnormality occurs.

  The projector 100 can store the abnormality log data 144 by the above procedure.

  When the storage of the abnormality log data 144 is completed, the control unit 130 performs a cooling process by turning off the lamp of the projection unit 114, stopping the fan 192, and the like (step S4).

  When the cooling process is completed, the projector 100 transitions from the normal state to the standby state when an abnormality occurs.

  When the control unit 130 determines that the projector operator or the like has performed an abnormality confirmation operation based on the operation information from the operation unit 120, the control unit 130 outputs a control command to cause the image processing unit 113 to generate the log image 302 and the like. To do. Specifically, for example, when an abnormality occurs in the projector 100 used by an individual user, a repair person who receives a notification from the individual user performs an abnormality confirmation operation.

  The image processing unit 113 generates a maintenance management log image 302 and the like based on the temperature log data 142 and the abnormality log data 144 based on the control command, and the projection unit 114 projects the log image 302 and the like.

  In this embodiment, as the log image, an image obtained by removing the “Fatal Error” portion from the log image 300 is displayed as the first page, the log image 302 is displayed as the second page, and the temperature log image is displayed as the third page. To do.

  FIG. 7 is a diagram illustrating an example of the temperature log image 304 in the present embodiment.

  The temperature log image 304 includes a level (for example, 03, 04, 05, 06, etc.) corresponding to a numerical value of the passed temperature, measured values (T1 to T6) of each temperature sensor 170, and driving voltage values (F1) of each fan 192. F6), the elapsed time since the power supply 190 was turned on (POT: hour, minute, second), and the like. Note that “Control” at the bottom of the temperature log image 304 indicates the latest temperature log.

  For example, in the example shown in FIG. 7, eight temperature logs are displayed in time series from the latest one.

  Further, when the control unit 130 determines that the projector user has performed a confirmation operation on information related to the projector based on the operation information from the operation unit 120, the control unit 130 causes the image processing unit 113 to generate a user menu image for a general user. Output control instructions.

  Based on the control command, the image processing unit 113 generates a user menu image based on the temperature log data 142, the abnormality log data 144, and the time data 146, and the projection unit 114 projects the user menu image.

  FIG. 8 is a diagram illustrating an example of the user menu image 306 in the present embodiment.

  For example, when a general user selects “information” on the menu image, the user menu image 306 is projected.

  In “Information”, a status indicating the state of the projector 100 is displayed in addition to the lamp lighting time, the input source, and the like. In the status, for example, the low brightness conversion time in the latest abnormality log, the elapsed time (hour, minute, second) since the power source 190 was turned on, and the type of abnormality are displayed.

  As can be seen by comparing FIG. 2 and FIG. 8, the log image 302 for maintenance management and the user menu image 306 are synchronized. The log image 302 and the like are special images for traders, and the user menu image 306 is an image for general users.

  As described above, according to the present embodiment, when the numerical value serving as the check point passes, the projector 100 stores the change in temperature by associating and storing the data related to the numerical value and the data related to the passage time. In addition, by storing only when the checkpoint is passed, the temperature log data 142 can be reliably stored with a smaller storage capacity than when the temperature log data 142 is stored at regular intervals. As a result, the projector 100 can more reliably store and present the content of the abnormality with a small storage capacity.

  Further, according to the present embodiment, the projector 100 can show temperature log information and abnormality log information to the user with images.

  In addition, according to the present embodiment, the abnormality history can be managed by storing the abnormality log data 144 when an abnormality occurs.

  In addition, according to the present embodiment, the projector 100 stores not only the abnormality log data 144 but also the temperature log data 142 and shows the temperature log information as an image, so that the contractor or the like can detect the temperature before the abnormality occurs. Can understand changes in Thereby, it becomes easy for a contractor etc. to specify the cause of abnormality, such as when abnormality occurs by the temperature rise of an air-conditioner.

  Further, according to the present embodiment, by using the log image 302 and the like to indicate the type of abnormality and the time point of occurrence of the abnormality in a time series, it is easy for a trader or the like to analyze the content of the abnormality and to identify the cause of the abnormality. .

  Further, according to the present embodiment, when the temperature of one temperature sensor passes the check point, the projector 100 stores the temperature of another temperature sensor and the driving information of the fan, so that the temperature log image 304 is displayed. In addition, the temperature of each temperature sensor and the driving information of each fan when the check point passes can be shown. Thereby, it is easy for a contractor etc. to specify the cause when there is abnormality in temperature.

  Further, according to the present embodiment, the projector 100 projects the log image 302 and the user menu image 306 based on the temperature log data 142 and the abnormality log data 144, and the image displayed to the supplier, and the general user. The contents of the image to be shown can be linked.

  For example, even when the projector 100 deletes or updates the temperature log data 142 or the like, the “status” in the user menu image 306 matches the latest “Error Log” in the log image 302. . Thereby, for example, even if the manufacturer receives a report of an abnormality from a general user and the repair person confirms the contents of the abnormality in the log image 302, the confirmation contents of the user and the repair person match, The person in charge is easy to repair.

(Explanation of date and time estimation process)
Here, an abnormality occurrence date and time estimation process using the abnormality log data 144 and the time data 146 by the time calculation unit 150 will be described.

  For example, it is assumed that the average usage time of the projector 100 for one day is stored as part of the time data 146. The average usage time may be set by the user, or may be calculated by the time calculation unit 150. For example, since a timetable is determined at a school or the like, the user can set the average usage time of the projector 100 for one day.

  The time calculation unit 150 determines the abnormality occurrence date by dividing (current total operation time−total operation time at the time of occurrence of abnormality) by the average daily usage time. Specifically, when the current total operating time is 260 hours, the total operating time when an abnormality occurs is 232 hours 40 minutes 50 seconds, and the average daily usage time is 8 hours, 27 hours 19 minutes 10 seconds / 8 Time = about 3.4, 3 days ago.

  Further, it is assumed that the use start time of the projector 100 is stored as part of the time data 146. Note that the projector 100 administrator turns on the power supply 190 of the projector 100 at a predetermined time when work starts every morning, or the projector 100 turns on the power supply 190 of the projector 100 at a predetermined time via a network. The start time is assumed to be fixed. Here, the use start time is assumed to be 9 am.

  In this case, the time calculation unit 150 can determine the abnormality occurrence time by adding the elapsed time after the power source 190 is turned ON when the abnormality occurs to the use start time of the projector 100. For example, when the elapsed time after the power source 190 is turned on when an abnormality occurs is 1 hour 10 minutes 5 seconds, the abnormality occurrence time is around 10:10 am.

  Furthermore, since the trader can grasp the history of abnormality using the log image 302 and the temperature history using the temperature log image 304, the room temperature is about 10:10 am three days ago. It is possible to estimate that an abnormality has occurred due to high temperature.

  As described above, according to the present embodiment, the projector 100 can determine the date and time of occurrence of the abnormality without using the RTC, and therefore the date and time of occurrence of the abnormality without using the RTC with a simpler configuration. Can be estimated.

  Further, according to the present embodiment, the projector 100 can measure the elapsed time from when the power is turned on by the counter 152, and can determine the time of occurrence of an abnormality without using the RTC, so that the configuration is simpler. Thus, it is possible to estimate the occurrence of an abnormality without using the RTC.

(Other examples)
In addition, application of this invention is not limited to the Example mentioned above, A various deformation | transformation is possible.

  For example, the image processing unit 113 may generate the log image 302 by narrowing down for each type of abnormality in accordance with the designation of a supplier or the like.

  According to this, the trader or the like can narrow down and check the type of abnormality, and can easily confirm the content of the target abnormality even when the display area is small.

  Further, the projector 100 outputs the temperature log data 142, the abnormality log data 144, and the time data 146 to a PC (Personal Computer) having an external display function, a mobile phone, or a portable information storage medium using the output interface unit. The log image 302 or the like may be displayed on a PC or the like. According to this, the projector 100 can display the log image 302 or the like by a PC or the like even when the image cannot be projected.

  In this case, the distance between the projector 100 and the external device may be a short distance or a long distance. For example, when the projector 100 and a PC are connected via the Internet, a person in charge of the manufacturer can remotely monitor the state of the projector 100 using the PC.

  In addition, when an operation for initializing the temperature log data 142, the abnormality log data 144, and the like is performed, the output interface unit may back up the abnormality log data 144, etc. to a portable information storage medium and then initialize. Note that the operation for performing initialization or deletion may be, for example, an operation using a key combination in which the image does not change in a state where the log image 302 and the temperature log image 304 are displayed.

  In addition, the abnormality monitoring unit 180 may store only the data regarding the types of abnormalities designated by the user or the contractor in the abnormality log data 144 instead of storing the data regarding all types of abnormalities. Accordingly, the projector 100 can store a necessary log even when the storage capacity of the storage unit 140 is small.

  In the above-described embodiment, the data related to the numerical value passed with respect to the temperature is the level, but may be a numerical value. In the above-described embodiment, the data related to the passage time is the elapsed time after the power source 190 is turned on, but may be the total operation time or the like. The data related to the time of occurrence of the abnormality may also be data indicating any one of the total operating time, the low luminance conversion time, and the elapsed time since the power source 190 is turned on.

  Moreover, the temperature sensor 170 and the fan 192 may be one each.

  Projector 100 is not limited to a liquid crystal projector, and may be, for example, a projector using DMD (Digital Micromirror Device) developed by Texas Instruments, Inc., USA.

It is a figure which shows an example of the conventional log image. It is a figure which shows an example of the log image in a present Example. It is a functional block diagram of the projector in a present Example. It is a flowchart which shows the flow of the process regarding the log in a present Example. It is a flowchart which shows the flow of the temperature monitoring process in a present Example. It is a flowchart which shows the flow of the abnormality log storage process in a present Example. It is a figure which shows an example of the temperature log image in a present Example. It is a figure which shows an example of the user menu image in a present Example.

Explanation of symbols

  100 projector, 110 presentation unit, 111 audio processing unit, 112 audio output unit, 113 image processing unit, 114 projection unit, 120 operation unit, 130 control unit, 140 storage unit, 142 temperature log data, 144 abnormality log data, 146 hours Data, 150 hours calculation unit, 152 counter, 160 Temperature monitoring unit, 162 Temperature passage detection unit, 170 Temperature sensor, 180 Abnormality monitoring unit, 190 Power supply, 192 Fan, 200 Information storage medium, 300, 302 Log image, 304 Temperature log Image, 306 User menu image

Claims (7)

At least one temperature sensor for measuring the temperature of the object to be measured;
A temperature passage detection unit for detecting that the temperature has passed a numerical value serving as at least one checkpoint;
If the numerical values to be the check point by the temperature passage detection unit the temperature is detected to have passed, the value measured by the temperature sensor, the temperature log data in association with data indicating the passing time of the said passage A temperature monitoring unit stored in the storage unit;
Based on the temperature log data, an image generation unit that generates a temperature log image showing the measurement value and the passage time point in time series,
A projection unit for projecting the temperature log image;
Including a projector. The projector according to claim 1 , wherein
Including a plurality of temperature sensors for measuring the temperature of different objects to be measured;
Said temperature monitoring section, when passing through the numerical value the temperature of at least one of the temperature sensor is the check point, and data related to the number you passed, the data indicating the passing through time, related to the temperature of each temperature sensor A projector characterized by being associated with data and stored in the storage unit as the temperature log data. The projector according to claim 2 ,
A plurality of fans for cooling the measurement object;
The temperature monitoring unit, when the temperature of at least one of the temperature sensors has passed a numerical value that is the check point, data relating to the numerical value passed, data relating to the passing time point, data relating to the temperature of each temperature sensor, A projector characterized in that the temperature log data is stored in a storage unit in association with data relating to driving of each fan. The projector according to any one of claims 1 to 3 ,
A projector comprising: an output unit that outputs the temperature log data to an external device having a display function or a portable information storage medium. A computer having a projector having at least one temperature sensor for measuring a temperature to be measured, a storage unit, and a projection unit ;
A temperature passage detection unit for detecting that the temperature has passed a numerical value serving as at least one checkpoint;
If the numerical values to be the check point by the temperature passage detection unit the temperature is detected to have passed, the value measured by the temperature sensor, the temperature log data in association with data indicating the passing time of the said passage A temperature monitoring unit stored in the storage unit ;
Based on the temperature log data, an image generation unit that generates a temperature log image showing the measurement value and the passage time point in time series,
Program for causing to function as a projection control unit for projecting the temperature log image to the projection unit. An information storage medium storing a program readable by a computer of a projector having at least one temperature sensor for measuring a temperature to be measured, a storage unit, and a projection unit ,
An information storage medium storing the program according to claim 5 . A projector having at least one temperature sensor for measuring the temperature of a measurement object and a storage unit,
Detecting that the temperature has passed a numerical value that is at least one checkpoint;
When it is detected that the temperature has passed the numerical value serving as the check point, the measurement value by the temperature sensor and the data indicating the passing time point are stored in the storage unit as temperature log data in association with each other. ,
Based on the temperature log data, generate a temperature log image showing the measured value and the passage time point in time series,
Projecting the temperature log image;
Projection method.

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